Grissom AFB, Indiana Weather
Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →
Grissom AFB weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Heavy Showers93%1.7″74°55°—
- ThursdayJun 18Overcast37%—71°61°-3°
- FridayJun 19Light Drizzle——73°54°+2°
- SaturdayJun 20Light Drizzle13%—76°56°+3°
- SundayJun 21Showers65%0.84″62°55°-14°
- MondayJun 22Overcast65%—71°51°+9°
- TuesdayJun 23Overcast——74°52°+3°
AQI 21 (Good), driven by Ozone. AQI down 11 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:42 AM
- Moonset
- 11:23 PM
- In sign
- ♌︎ Leo
Heat settles and the rain begins
Grissom AFB at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Grissom AFB
- Wed74°55°93%
- Thu71°61°37%
- Fri73°54°3%
- Sat76°56°13%
- Sun62°55°65%
- Mon71°51°65%
- Tue74°52°6%
- Wed73°60°11%
- Thu79°59°18%
- Fri81°62°25%
- Sat81°66°29%
- Sun84°68°45%
- Mon83°69°53%
- Tue79°67°53%
- Wed81°66°51%
- Thu68°58°48%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Grissom AFB
SPC has placed Grissom AFB in the Moderate Risk category for severe thunderstorms today.
- TODAYMDTModerate Risk
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Widespread severe storms expected. Tornadoes (some strong), large hail, and damaging wind gusts are likely. Stay weather-aware and review your sheltering plan.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Grissom AFB
- 46971
- 46970
- 46914